{
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    "title": "Substack Scraper – Newsletter Posts, Search & Publication Info",
    "description": "Scrape Substack newsletter posts from any publication URL or search all of Substack by keyword. Get title, date, author, URL, likes, comments, restacks, word count and free/paid flag, plus publication info. Public JSON API, no login.",
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        "properties": {
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            "title": "Publication URLs",
            "type": "array",
            "description": "Substack newsletters to scrape: https://name.substack.com, a custom domain (https://www.lennysnewsletter.com), or just the subdomain (name). Post URLs also work; the publication is taken from them.",
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            "type": "array",
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              "type": "string"
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          },
          "maxPostsPerSource": {
            "title": "Max posts per publication / query",
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            "maximum": 10000,
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          },
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          },
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          },
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          },
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            "title": "Audience filter",
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              "free",
              "paid"
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          },
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            "title": "Include post text",
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          },
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                  "userAgent": {
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